Passing markdown2html the resources dict instead of just a value
of it, to more easily dig into it in the future without changing
the templates.
Tell which import is used for which version of Python
fix typo
In IPython.nbconvert.filters.highlight :
 * Highlight2Html & Highlight2Latex both inherit HighlightBase
 * --HighlightBase.highlight_enabled Bool siwtches [pygment] highlighting on/off
 * --Highligh2Html.css_class_template Unicode lets the user customize the css
   class of the <pre> or <div> element that surrounds the code.
 * Highlight2Latex simply returns the source code untouched if
   highlight_enabled is False

The html_*.tpl templates have been mostly reverted to their original state.

A new utility module:
IPython.nbconvert.utils.html : "implements" html_escape.
aha, bad key